{
  "type": [
    "object",
    "null"
  ],
  "properties": {
    "expression": {
      "type": "string"
    },
    "target": {
      "type": [
        "string",
        "null"
      ],
      "default": null
    }
  },
  "required": [
    "expression"
  ],
  "$id": "https://ruleforge-docs.onrender.com/schemas/calc-config.schema.json",
  "title": "Calc config"
}